Microscopic World -3-
(The World of the Atomic Nucleus)
Part 1: The Discovery of the Atomic
Nucleus, Its Constituents

As a result of
investigation on the atomic structure
by E. Rutherford
and N. Bohr,
it was made clear that
the atom is not
"indivisible"
and still retains an internal
structure
in which a heavy,
positively charged,
extremely small
nucleus is
surrounded by light electrons.
Then we have a question,
"what's the nucleus?"
Now, let us go on a visit
to the World of the
Atomic Nucleus.